Question

1. Create business rules that might go with this scenario. Keep in mind that nouns (subjects) will become entities and their characteristics attributes. Verbs will translate into the relationships between entities.

2. Create the ER diagram using Visio that would go with this scenario. Be sure to include entities, attributes, keys, and relationships using the crow's feet notation. Submission
1. A Word document (.docx) that contains the business rules.
2. A Visio (.vsdx) file containing the ER diagram.

Answer 1

Business rules for a scenario involve identifying entities, attributes, and relationships to be represented in an ER diagram. Using Visio, entities are represented by rectangles, attributes by ovals, keys by underlined attributes, and relationships by lines with crow's feet notation.

Step-by-step explanation:

To create business rules for a given scenario, it is important to identify entities, their attributes, and the relationships between these entities. First, break down the scenario into nouns and verbs as they will guide the structure of your ER diagram. Nouns will be your entities, with their characteristics becoming the attributes, and verbs will help define the relationships played out in crow's feet notation.

For example, if the scenario mentions customers, books, and sales, 'customer' and 'book' may be entities, with 'sales' representing a relationship. Attributes for a customer could include customer ID, name, and contact information, while a book might have ISBN, title, and author as its attributes. The relation would indicate how customers are associated with books (like purchasing).

An Entity-Relationship (ER) diagram using Visio will visually represent these elements, where entities are usually depicted as rectangles, attributes as ovals connected to their entities, unique identifiers or keys as underlined attributes, and relationships as lines connecting entities, with crow's feet indicating the multiplicity of the relationship.